Lantern



E. M. ROSENBLUTH.

LANTERN..

APPLICATION FILED SEPT.18, 1-918.

Patented Aug. 31, 1920.

HG. I

FIG!

l/V l EN TOR ATTORNEY stares rarer rrics LANTERN.

Application filed September 18, 1918.

T0 (ZZZ whom it may concern:

Be it known that l, EDWIN M. Roseni-nurrii, a citizen of the United States, residin; at li allingford, in the county of Dela ware and State of Pennsylvania, have invented a certain new and useful Improvement in, Lanterns, whereof the following a specification, reference being had to the accompanying drawings. Y

My invention relates to lanterns adapted to burn a liquid fuel, such as kerosene or other hydrocarbons, and of the class wherein the fuel is supplied in a lamp body, provided with a wick and shaft for operating it; such lamp body being separable from the lantern casing and requiring means to detachably secure. it in cooperative rela tion in such casing, which includes a lamp chamber, a flame chamber, and a chimney for the products of combustion. My improvements relate particularly to means appurtenant to such a lantern casing; whereby such a lamp body may be detachably locked in cooperative relation with said casing, prevented from accidental dis placement and prevented from rattling, and include a removable cap for said lamp chamber; and means whereby said cap may be detachably locked in connection with said casing to maintain said lamp in cooperative relation therewith; but permitting said cap to be manually unlocked, for the removal of said lamp body to replenish it with fuel; such. means including an inwardly extending flange adapted to be engaged by opposite projerjctions upon the lamp casing; said flange having a single notch through which one of said studs may pass and having, adjaeent that notch, an inwardly-and downwardly extending stop projection on the cap, adapted to hold the cap with said notch out of registry with said projection.

Although I find it convenient to illustrate my invention with reference to a lantern designed tor attachment to a vehicle, it is to be understood that it is not restricted to such use, but that my invention includes the various novel features of construction and arrangement hereinafter more definitely specified.

In said drawing; Figure I is a side elevation of a lantern conveniently embodying my invention.

Fig. ll is a vertical central sectional view of id lantern showing the cooperative re lation at the casing, lamp body and cap.

Specification of Letters Patent.

Patented Aug. 31, 1920.

Serial No. 254,540.

the lantern casing 1 includes the lamp chamber 2 and the flame chamber 3 with the partition 4 between them, and said flame chamber is provided with the chimney 5 having suitable vents 6 for products of combustion. Said casing is provided with a system of air inlets and passageways, cooperative with said vents 6, and including the single wick shaft slot 7 and a plurality of air inlets 8 in the side wall of said lamp chamber, and the air flue 9 which affords a passageway through said partition 4., in the center of said lamp chamber. Said casing 1 is adapted to cooperate with the removable lamp comprising the body 10 and cap 11. Said body 10 is a reservoir for kerosene or other liquid hydrocarbon, and the detachable screw cap 11 is removably fitted in said body 10. Said lamp carries, on its cap 11, the perforated air screen 12 between said air inlets 8 and said air line 9, which serves to equally distribute the air supply throughout its circumference. Said lamp cap has the wiclr tube 18 extending into said fiamechamber 3, through said air flue 9, and has the wick shaft l l exten ding to the exterior of said casing 1 through said wick shaft slot 7. Said shaft is journaled in said cap 11 and provided wi h the usual toothed wheels for engaging the wick 16.

The proper position of said lamp in said casing, which must be m tained, in order to render said lamp coop ative with said casing and the air circulating system thereof, is prer'isely predetermined by the vertical extent of said wick shaft slot 7. In order to maintain said lamp in the operative position shown in H, I find it convenient to provide diametrically opposite projections 17 at the lower edge of said casing 1, for detachable en a ement with the in a:

bottom cap 18. Said cap 18 is formed of a single piece of resilient sheet metal having a unitary spring bottom 19 with a raised central portion 20 to uphold said lamp, by pressure upon the bottom of said lamp body 10. Said cap has the inwardly turned an adapted to overhang both said projections 't' 1 ii gosi io i, n

' ing "the latter r '7 cap.

'17. I provide the inwardly and downwardly extending stop. projection on said cap, notch 23, to hold said atone'side of said cap with said notch 23 out of registry with said projection. That projection 25 is conveniently formed by downwardly turning the portion of the metal of said flange 22 which has been punched out to form said notch 23; which portion is preferably soldered to the cylindrical side wall of said I provide the inwardly and downwardly extending locking'projection 26, on said spring cap flange 22, to snap over one of said projections, as the cap is turned toward said stop 25, and thus pocket that projection 17 of the casing 1, between said projections 25 and26 of the cap, to prevent accidental rotation and release'of the latter; whereby said lamp may be locked in cooperative relation with said casing 1, prevented fronr accidental displacenu-int, and

prevented from rattling, by said cap 18, V which thus resiiiently holds said lamp, until said cap is manually turned to the position in which it may beremoved from said cass- It is to be u'nderstoodthat said cap may be applied to said casing by engaging the unnotched portion of its spring flange 22 over one ofsaid projections 17, with the cap inclined as indicated in dotted lines in Fig. 1-; the notch in said flange being in registry with the opposite easing projection 17 so that the cap may be swung up to the position shown in full lines in which latter position, the cap may be turned to overhang and engage both casing projections 17. In order to lock said cap in engagement with. aid casing,- in that which the lamp is in operative correlation with the. casing said cap is then turned until the locking projection 26 snaps over one of said ca. ng projections 1'? and pockets the latter veen s id projections 25 and 26 on said cap, inmcated by the dotted circic in Fig. lVf .ro unlock said cap and release said lump, it necessary to rotate it in the opposite direction, until its notch 28 registers with one of said casing projections 17, when the cap may be lowered to the position shown in dotted lines in V Fig. l and laterally removed from the other projection 17, which thus serves as a hinge for said cap both in opening and 010s with respect to said casing 1. 1 In the form of my invention shown in Fig V; l dispense with the inwardly and downwardly extending stop projection 25 on the cap 28, and provide the latter with two locking projections 29 (which are each like the locking projection 26 aforesaid) on re spectively opposite sides of the notch 80,

in Figs. 1 and ll,

7 itself to fall out casing, including a which is shaped like the notch 23 in said cap 18. In this form. of my invention; the cap 28 may be applied to the casing 1 precisely like the cap 18, as above described, but may be locked in connection with the casing, by turning it in either direction, to cause either one of said locking projections 29 to. snap overthe 'casing projection 17 which has just come through the cap notch. That modified form of my invention is cheaper to manufacture than the form including said stop 25, but is less secure than the latter, because the cap may be released by turning it in either direction to cause either cap projection 29 to snap over a casing projection 17 to permit the latter to register with: the notch 30 whereas, in the form including said stop 25, it is impossible for the cap; stop projection 25 to be turned past the casing projection 17, and it is thereforev necessary to turn the cap a half revolution to remove it from its 'lockedposition; I

It may be observed that the general construction of the lantern shown in the drawings is substantially such as shown in Letters Patent of the United State No. 609,588 granted to the present. applicant August 23, 1898, with the exception of the bottom cap on the lamp casing. of lanterns having caps such as shown in said Letters Patent having been made and used, it appeared that, first, as the springs in said caps were'made separate and distinct therefrom and soldered thereto, the soldering operation so far reduced the resiliency of the spring metal that the springs were readilydistorted from their proper initial form and thereafter permitted greater freedom of vibration of the cap than was intended and, second, because such caps did not have any means for locking them in assembled position; the vibration to which they were subjected in connection with the vehicle frequently sufficed to loosen them so that they would fall off, thus permitting the lamp of the casing and be lost, while the vehicle carrying the lamp was moving, and without attracting the attention of its operator. Therefore, my present invention is advantageous in that it not only overcomes both of the aforesaid difficulties, but by a construction which is less costly to manufacture, both as to materials and labor, than the cap and spring shown in said Letters Patent. 7

I do not desire to limit myself to the precise details of construction and arrangement herein set forth, as it is obvious that various modifications may be made therein without departing from the essential features of my invention as defined in the appended claims.

' I claim: 7 I

I 1. In a lantern, thecombination with a lamp chamber in the lower portion thereof; of a lamp in said chamber; diametrically opposite projections at the lower edge of said casing; a bottom cap for said casing, formed of a single piece of resilient sheet metal, having a unitary spring bottom with a raised central portion to uphold said lamp, and an inwardly turned annular spring flange, having a notch to pass one of said projections, but adapted to overhang and engage both said projec tions; an inwardly and downwardly extending'stop projection on said cap'at one side of said notch; and an inwardly and downwardly extending locking projection on said flange; whereby said lamp may be locked in cooperative relation with said casing, pre vented from accidental displacement, and prevented from rattling, by said cap.

2. In. a lantern, the combination with a casing, including a lamp chamber in the lower portion thereof; of a lamp in said chamber; diametrically opposite projections at the lower edge of said casing; a bottom cap for said casing, formed of a single piece oi? resilient sheet metal, having a unitary spring bottom with a raised central portion to uphold said lamp, and an inwardly turned annular spring flange, having a notch to pass one of said projections, but adapted to overhang and engage both said projections; an inwardly and downwardly extending locking projection on said. flange; whereby said lamp may be locked in cooperative relation with said casing, prevented "from accidental displacement, and prevented from rattling, by saidcap.

3. In a lantern, the combination with a casing, including a lamp chamber in the lower portion thereof; of a lamp in said chamber; diametrically opposite projections at the lower edge of said casing; a bottom cap for said casing, formed of a single piece of resilient sheet metal, having an inwardly turned annular spring flange, having a notch to pass one o'f'said projections, but adapted to overhang and engage both said projections; an inwardly and downwardly extending stop projection on said cap at one side of said notch: and an inwardly and down wardly extending locking projection on said flange; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap.

4. In a lantern, the combination with a casing, including a lamp chamber in the lower portion thereof; of a lamp in said chamber; diametrically opposite projections at the lower edge of said casing; a bottom cap for said casing, having a unitary spring bottom with a raised portion to uphpld said lamp, and an inwardly turned annular spring flange, having a notch to pass one of said projections, but adapted to. overhang and engage both said projections; an incasing,

wardly and downwardly extending stop projection in said cap adjoining said notch; and an inwardly and downwardly extending locking projection on said cap; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap. 7

5. In a lantern, the combination with a including a lamp chamber in the lower portion thereof; of a lamp in said chamber diametrically opposite projections at the lower edge of said casing; a bottom cap for said casing, having an inwardly turned annular spring flange, having a notch to pass one of said projections, but adapted to overhang and engage both said projections; an inwardly and downwardly extending stop projection in said cap adjoining said notch; and one inwardly and downwardly extending locking projection on said cap; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap.

6. In a lantern, the combination with a casing, including a lamp chamber in the lower portion thereof; of a lamp in said chamber; diametrically opposite projections at the lower edge of said casing; a bottom cap for said casing, having an inwardly turned annular spring flange, having a notch to pass one of said projections, but adapted to overhang and engage both said projections; and two inwardly and downwardly extending projections on said cap; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap.

7. In a lantern, the combination with a casing; of a lamp removably fitted in said casing; opposite projections at the lower edge of said casing; a bottom cap for said casing, formed of a single piece of resilient sheet metal, having a unitary spring bottom with a raised central portion to uphold said lamp, and. an inwardly turned annular spring flange, having a notch to pass one of said projections, but adapted to overhang and engage both said projections; an inwardly and downwardly extending stop projection in said cap at one side of said notch; and an inwardly and downwardly extending locking projection on said flange; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap.

8. In a lantern, the combination with a casing; of a lamp removably fitted in said casing; opposite projections at the, lower edge of said casing; a bottom cap for said casing, formed of a single piece of resilient sheet metal, having an inwardly turned anedge of said casing; a

nular spring flange, having a notch to pass one of said projections, butjadapted to overhang and engage both saidprojections; an inwardly and downwardly extending stop projection insaid cap at one side of said notch; and an inwardly and downwardly extending locking projection on said flange; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap. 1 9; In a lantern, the combination. with a casing; of a lamp removably fitted in said casing; opposite; projectionsat the lower edge of said casing; a bottom cap. for said casing, formed of a singlepieceof resilient sheet metal, having an inwardly turned annular spring flange, with a notch to pass one of said projections, but adapted to overhang and engage both said projections; and two inwardly and downwardly extending pro,- jections in said. cap, adjacent saidnotch; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by said cap.

10. In a lantern, the combination with a casing; of a lamp reincvably fitted in, said casing; opposite projections at the lower edge of said casing; a bottom cap i or said casing, having an inwardly turned annular flange, with a notch to. pass. one of said projections, but adapted to overhang and enboth'said projections; an inwardly and downwardly extending stop projection in said cap at one side of said notch; and an inwardly and downwardly extending locking projection on said flange; and a spring element in. unitary relation with said cap, arranged to uphold said lamp; whereby said lamp may be locked in cooperative relation with said casing,prevented from accidental displacement, and-prevented from rattling, by said cap. 7 V

11. In a lantern, the combination with a casing; of a lamp removably fitted in said casing; opposite projections at the lower bottom cap for said casing, having an inwardly turned annular spring flange, having a notch tofpass one of said projections, but adaptedv to overhang and engage both said projections; two insaid cap.

' one of said projections,

wardly and downwardly extending projec tions in said cap; and a spring element in said capyarranged to uphold unitary relation with said lamp; whereby said lamp may be locked in cooperative relation with said casing, prevented from accidental displacement, and prevented from rattling, by

lantern, the combination with a casing, having an opening, with projections at opposite sides thereof; oi": a cap for said opening, formed of a single piece of resilient'sheet metal, having an inwardly turned annularspring flange, with a notch to pass 12. In a hang and engage both said projections; an inwardly extending stop projection in saidcap at one side of said notch, formed of the metal from said notch, in unitary relation with said cap, at one end, and soldered to said cap, at the other end; and an inwardly extending locking projection on said flange, whereby said cap, may be locked on said casing. w 1' 13. In a lantern, the combination with a casing, having an opening, with projections at opposite sides thereof;- ota cap for. said opening, having a notch to pass one of said projections, but adapted to overhang and engage both said projections; an inwardly extending stop projection in said cap at one side of said notch, :tormedoi the metal from said notch, inunita-ry relation with said cap; and an inwardly extending locking projection on said flange; whereby said cap may be locked on said casing. A

14. In a lantern, the combination with a casing, having an opening, with projections at opposite sides thereof; of a cap for said opening, having an inwardly turned flange, with a-notch to pass one of said projections, but adapted to. overhang and engage both said projections; and two inwardly extending projections on said cap; whereby said cap may be locked on said casing.

In testimony whereof I have hereunto signed my name at Philadelphia,- Pennsylvania, this tenth day of September, 1918.

EDl VIN M. ROSENBLUTH. ,l/Vitnesses: V I V 7 ARTHUR E. PAIGE,

CARoLrN E, Bnornn.

but'adapted to over- 

